6 papers · 1 filter
Large-scale HI in nearby radio galaxies: segregation in neutral gas content with radio source size
B. H. C. Emonts, R. Morganti, T. A. Oosterloo +3
We present results of a study of neutral hydrogen (HI) in a complete sample of nearby non-cluster radio galaxies. We find that radio galaxies with large amounts of extended HI (M_H…
Merger-origin of radio galaxies investigated with H I observations
B. H. C. Emonts, R. Morganti, T. A. Oosterloo +4
We present results of an HI study of a complete sample of nearby radio galaxies. Our goal is to investigate whether merger or interaction events could be at the origin of the radio…
The location of the broad HI absorption in 3C305: clear evidence for a jet-accelerated neutral outflow
R. Morganti, T. A. Oosterloo, C. N. Tadhunter +2
We present high-spatial resolution 21-cm HI VLA observations of the radio galaxy 3C305 (z=0.041). These new high-resolution data show that the ~1000 km/s broad HI absorption, earli…
HI absorption from the central kpc of radio galaxies: effect of orientation or interstellar medium?
R. Morganti, T. A. Oosterloo, C. N. Tadhunter +6
We present a summary of recent studies of HI absorption in radio galaxies. The results show how the absorption can be due to a variety of phenomena and how they can help us in unde…
The vertical structure and kinematics of HI in spiral galaxies
Renzo Sancisi, Filippo Fraternali, Tom Oosterloo +1
We discuss the distribution and kinematics of neutral hydrogen in the halos of spiral galaxies. We focus in particular on new results obtained for the nearby Sc galaxy NGC 2403 whi…
HI absorption in radio galaxies
R. Morganti, T. A. Oosterloo, G. van Moorsel +2
Twenty-two powerful radio galaxies have been searched for HI absorption. We find the highest probability of detecting HI in absorption among narrow-line compact (or small) galaxies…